David Brin argues that impeaching the troll would be a tactical mistake, because it would enrage his base, and Pence would be just as bad.

He has valid points, but I see one on the other side. The troll's bullshit seems to be necessary to keep some of his base from waking up to the truth. I don't think Pence could do that the way the troll does.

Also, Pence may avoid doing some bad things out of stupidity or wild idiocy.